Question: “Which one of these is not one of the rules for naming organic compounds?”
Answer Choices:
Find the longest carbon chain and give it a root name.
Find the shortest carbon chain and give it a root name.
Identify the highest priority functional group and add its suffix to the root name.
Identify the types of substituents and their positions on the carbon chain.
Answer: “Find the shortest carbon chain and give it a root name.”
Question: “How are esters synthesized?”
Answer Choices:
using ethanol
using alcohol
using carboxylic acid and alcohol
using alcohol
Answer: (C) using carboxylic acid and alcohol
Question: Carbon has an atomic number of 6. Which of the following is true about the isotope C-12?
Answer Choices:
C-12 possesses 7 neutrons and 5 electrons in its nucleus.
C-12 possesses 7 protons and 5 neutrons in its nucleus.
C-12 possesses 6 neutrons and 6 protons in its nucleus.
C-12 possesses 6 protons and 6 electrons in its nucleus.
Answer: C. C-12 possesses 6 neutrons and 6 protons in its nucleus.
Question: “___ have identical boiling and melting points.”
Answer Choices:
(A) Mirror isomers
(B) Optical isomers
(C) Rotational isomers
(D) Inverse isomers
Answer: (B) Optical isomers
Question: “In the Tollen’s silver mirror test, which of the following turned silver?”
Answer Choices:
Formaldehyde
Benzaldehyde
Acetone
Aldehyde
Answer: “Aldehyde.”
Question: Which of the following describes why water has a concave, or downward-curving, meniscus when poured in a glass beaker?
Answer Choices:
The adhesive forces with the glass are greater than the cohesive forces.
The cohesive forces with the glass are greater than the adhesive forces.
Glass has a higher density than water.
Water has a higher density than glass.
Answer: A. The adhesive forces with the glass are greater than the cohesive forces.
Question: (From the image of green and purple spheres in a 3D lattice)
Answer Choices:
(A) [not shown in chat]
(B) [not shown in chat]
(C) [not shown in chat]
(D) NaCl crystals
Answer: (D) NaCl crystals
Question: (From the image showing a benzene ring with an –OH substituent)
Answer Choices:
(A) phenol, benzene
(B) [not shown in chat]
(C) [not shown in chat]
(D) [not shown in chat]
Answer: (A) phenol, benzene
Question: (From the first image of a substituted alkene)
Answer Choices:
(A) 2,4‐dimethyl‐3‐hexene
(B) 2,5‐dimethyl‐2‐hexene
(C) [not shown in chat]
(D) [not shown in chat]
Answer: (B) 2,5‐dimethyl‐2‐hexene
Question: Describe anabolism.
Answer Choices:
The building of larger molecules from smaller ones
The breakdown of larger molecules into smaller ones
The processes that decompose structures within cells
The total of all chemical processes occurring in cells
Answer: A. The building of larger molecules from smaller ones
Question: (From the image showing an α‐helix)
Answer Choices:
(A) Primary
(B) Secondary
(C) Tertiary
(D) Quaternary
Answer: (B) Secondary
Question: Which of the following best describes adaptive immunity?
Answer Choices:
The body’s barrier defenses, such as mucous membranes and secretions.
The initiation of internal defenses, such as phagocytes and natural killer cells.
A response to specific traits of specific pathogens.
The initiation of the inflammatory response.
Answer: C. A response to specific traits of specific pathogens.
Question: “Amines turn red litmus paper what color?”
Answer Choices:
pink
yellow
green
blue
Answer: (D) blue